Adjustable wristband



FIG. 1 is a side elevation view of an adjustable wristband showing my new design in a closed position;

FIG. 2 is a bottom view thereof;

FIG. 3 is another side elevation view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a top front perspective view thereof;

FIG. 8 is a bottom rear perspective view thereof;

FIG. 9 is a bottom front perspective view thereof; and,

FIG. 10 is a cross-sectional view thereof, taken along line A-A shown in FIG. 1. 

CLAIM The ornamental design for an adjustable wristband, as shown and described. 